摘要
This paper studies the dispersion effect of the supersphere solid immersion lens （SIL） on a near field optical microscopy system by using the vector diffraction theory.Results show that when a real non-monochromatic beam illuminates a supersphere SIL microscopy,the dispersion effect of the SIL has an important influence on the image quality.As the wavelength bandwidth of the non-monochromatic beam increases,the size of the focused spot increases and its intensity decreases in near-field microscopy systems with a supersphere SIL.
This paper studies the dispersion effect of the supersphere solid immersion lens （SIL） on a near field optical microscopy system by using the vector diffraction theory.Results show that when a real non-monochromatic beam illuminates a supersphere SIL microscopy,the dispersion effect of the SIL has an important influence on the image quality.As the wavelength bandwidth of the non-monochromatic beam increases,the size of the focused spot increases and its intensity decreases in near-field microscopy systems with a supersphere SIL.
基金
Project supported by National Natural Science Foundation of China (Grant No 60777005)
